diff options
Diffstat (limited to 'examples/widgets/painting/gradients/gradients.cpp')
| -rw-r--r-- | examples/widgets/painting/gradients/gradients.cpp | 69 |
1 files changed, 5 insertions, 64 deletions
diff --git a/examples/widgets/painting/gradients/gradients.cpp b/examples/widgets/painting/gradients/gradients.cpp index 76d5818d32..5ed3d764d1 100644 --- a/examples/widgets/painting/gradients/gradients.cpp +++ b/examples/widgets/painting/gradients/gradients.cpp @@ -1,52 +1,5 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the demonstration applications of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:BSD$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** BSD License Usage -** Alternatively, you may use this file under the terms of the BSD license -** as follows: -** -** "Redistribution and use in source and binary forms, with or without -** modification, are permitted provided that the following conditions are -** met: -** * Redistributions of source code must retain the above copyright -** notice, this list of conditions and the following disclaimer. -** * Redistributions in binary form must reproduce the above copyright -** notice, this list of conditions and the following disclaimer in -** the documentation and/or other materials provided with the -** distribution. -** * Neither the name of The Qt Company Ltd nor the names of its -** contributors may be used to endorse or promote products derived -** from this software without specific prior written permission. -** -** -** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." -** -** $QT_END_LICENSE$ -** -****************************************************************************/ +// Copyright (C) 2016 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause #include "gradients.h" #include "hoverpoints.h" @@ -105,6 +58,8 @@ uint ShadeWidget::colorAt(int x) for (int i = 1; i < pts.size(); ++i) { if (pts.at(i - 1).x() <= x && pts.at(i).x() >= x) { QLineF l(pts.at(i - 1), pts.at(i)); + if (qIsNull(l.dx())) + continue; l.setLength(l.length() * ((x - l.x1()) / l.dx())); return m_shade.pixel(qRound(qMin(l.x2(), (qreal(m_shade.width() - 1)))), qRound(qMin(l.y2(), qreal(m_shade.height() - 1)))); @@ -318,12 +273,6 @@ GradientWidget::GradientWidget(QWidget *parent) QPushButton *showSourceButton = new QPushButton(mainGroup); showSourceButton->setText(tr("Show Source")); -#if QT_CONFIG(opengl) - QPushButton *enableOpenGLButton = new QPushButton(mainGroup); - enableOpenGLButton->setText(tr("Use OpenGL")); - enableOpenGLButton->setCheckable(true); - enableOpenGLButton->setChecked(m_renderer->usesOpenGL()); -#endif QPushButton *whatsThisButton = new QPushButton(mainGroup); whatsThisButton->setText(tr("What's This?")); whatsThisButton->setCheckable(true); @@ -337,9 +286,6 @@ GradientWidget::GradientWidget(QWidget *parent) mainGroupLayout->addWidget(defaultsGroup); mainGroupLayout->addStretch(1); mainGroupLayout->addWidget(showSourceButton); -#if QT_CONFIG(opengl) - mainGroupLayout->addWidget(enableOpenGLButton); -#endif mainGroupLayout->addWidget(whatsThisButton); QVBoxLayout *editorGroupLayout = new QVBoxLayout(editorGroup); @@ -415,11 +361,6 @@ GradientWidget::GradientWidget(QWidget *parent) connect(showSourceButton, &QPushButton::clicked, m_renderer, &GradientRenderer::showSource); -#if QT_CONFIG(opengl) - connect(enableOpenGLButton, QOverload<bool>::of(&QPushButton::clicked), - m_renderer, &ArthurFrame::enableOpenGL); -#endif - connect(whatsThisButton, QOverload<bool>::of(&QPushButton::clicked), m_renderer, &ArthurFrame::setDescriptionEnabled); connect(whatsThisButton, QOverload<bool>::of(&QPushButton::clicked), @@ -579,7 +520,7 @@ void GradientRenderer::paint(QPainter *p) g = QConicalGradient(pts.at(0), angle); } - for (const auto &stop : qAsConst(m_stops)) + for (const auto &stop : std::as_const(m_stops)) g.setColorAt(stop.first, stop.second); g.setSpread(m_spread); |